Restructure documentation

Change-Id: I2640e68972cb7c5ed67032a3b575a2aec056f592
diff --git a/R/ci.R b/R/ci.R
index 64f7c0a..80c45f1 100644
--- a/R/ci.R
+++ b/R/ci.R
@@ -15,6 +15,8 @@
 #' @param conf.level confidence level of the returned confidence interval. Must
 #'   be a single number between 0 and 1.
 #'
+#' @rdname misc-functions
+#'
 #' @export
 #' @importFrom stats prop.test
 #' @importFrom tibble remove_rownames